Question

A bus station is being constructed in three phases . In the first phase, 2/7 of the work is to be done. In the second phase, 4/9 part of the work is to be done. How much work has to be done in the third phase?​

Answer 1

$\rm\small\underline \red{Given:-}$

$\bullet\rm \: first \: phase = \frac{2}{7}$

$\bullet\rm \: second \: phase = \frac{4}{7}$

$\bullet\rm \: third \: phase = ?$

$\rm\small\underline \red{Find:-}$

$\bullet\rm How \: much \: work \: has \: to \: be \: done \: in \: the \: third \: phase?</p><p>$

$\rm\small\underline \red{Solution:-}$

First phase of second phase.

$\rightarrow\rm \: \frac{2}{7} + \frac{4}{9}$

$\rightarrow\rm \: \frac{18 + 28}{63}$

$\rightarrow\rm \purple{\frac{46}{63}}$

Third phase,

$\rightarrow\rm \: 1 - \frac{46}{63}$

$\rightarrow\rm \: \frac{63 - 46}{63}$

$\rightarrow\rm \purple{ \frac{17}{63} }$

Answer 2

Answer:

Step-by-step explanation:

1-2/7-4/9

97/63